G. Herron et J. Rophail, EFFECT OF CLOFENTEZINE-HEXYTHIAZOX RESISTANCE ON LIFE-TABLE ATTRIBUTES OF TETRANYCHUS-URTICAE KOCH (ACARI, TETRANYCHIDAE), Experimental & applied acarology, 17(11), 1993, pp. 823-830
Life-table parameters of clofentezine-hexythiazox susceptible, resista
nt and back-crossed hybrid strains of Tetranychus urticae were studied
to aid resistance management. Mean egg production (+/- s.e.) for the
QRPH strain was 102.99 (13.452) and significantly more (P<0.05) than f
or strains S 67.18 (8.370) and S-QRPH 50.98 (6.180) which were not sig
nificantly different from each other. We consider the elevated level o
f egg production evident in the QRPH strain to be evidence of coadapti
on. The relative fitness of the resistant strain would make resistance
management difficult.